package com.atguigu.srb.core.service.impl;

import com.atguigu.common.result.ResponseEnum;
import com.atguigu.common.result.exception.Assert;
import com.atguigu.srb.core.enums.BorrowInfoStatusEnum;
import com.atguigu.srb.core.enums.BorrowerStatusEnum;
import com.atguigu.srb.core.enums.UserBindEnum;
import com.atguigu.srb.core.mapper.BorrowInfoMapper;
import com.atguigu.srb.core.mapper.BorrowerMapper;
import com.atguigu.srb.core.mapper.IntegralGradeMapper;
import com.atguigu.srb.core.mapper.UserInfoMapper;
import com.atguigu.srb.core.pojo.entity.BorrowInfo;
import com.atguigu.srb.core.pojo.entity.Borrower;
import com.atguigu.srb.core.pojo.entity.IntegralGrade;
import com.atguigu.srb.core.pojo.entity.UserInfo;
import com.atguigu.srb.core.pojo.vo.BorrowInfoApprovalVO;
import com.atguigu.srb.core.pojo.vo.BorrowerDetailVO;
import com.atguigu.srb.core.service.BorrowInfoService;
import com.atguigu.srb.core.service.BorrowerService;
import com.atguigu.srb.core.service.DictService;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.math.BigDecimal;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * <p>
 * 借款信息表 服务实现类
 * </p>
 *
 * @author ws
 * @since 2021-06-30
 */
@Service
public class BorrowInfoServiceImpl extends ServiceImpl<BorrowInfoMapper, BorrowInfo> implements BorrowInfoService {

    @Resource
    private UserInfoMapper userInfoMapper;

    @Resource
    private IntegralGradeMapper integralGradeMapper;

    @Resource
    private BorrowerService borrowerService;

    @Resource
    private BorrowerMapper borrowerMapper;

    @Resource
    private DictService dictService;
    @Override
    public BigDecimal getBorrowAmount(Long userId) {
        UserInfo userInfo = userInfoMapper.selectById(userId);
        Assert.notNull(userInfo, ResponseEnum.MOBILE_ERROR);
        Integer integral = userInfo.getIntegral();
        QueryWrapper<IntegralGrade> integralGradeQueryWrapper = new QueryWrapper<>();
        integralGradeQueryWrapper.le("integral_start",integral);
        integralGradeQueryWrapper.ge(("integral_end"), integral);
        IntegralGrade integralGrade = integralGradeMapper.selectOne(integralGradeQueryWrapper);
        if (integralGrade == null) {
            return new BigDecimal("0");
        }
        return integralGrade.getBorrowAmount();

    }

    @Override
    public void saveBorrowInfo(BorrowInfo borrowInfo, Long userId) {
        UserInfo userInfo = userInfoMapper.selectById(userId);
        Assert.isTrue(userInfo.getBindStatus().intValue() == UserBindEnum.BIND_OK.getStatus().intValue(),
                ResponseEnum.USER_NO_BIND_ERROR);
        Assert.isTrue(userInfo.getBorrowAuthStatus().intValue() == BorrowerStatusEnum.AUTH_OK.getStatus().intValue(),
                ResponseEnum.USER_NO_AMOUNT_ERROR);
        BigDecimal borrowAmount = this.getBorrowAmount(userId);
        Assert.isTrue(borrowInfo.getAmount().doubleValue() <= borrowAmount.doubleValue(),
                ResponseEnum.USER_AMOUNT_LESS_ERROR);
        //存储数据
        borrowInfo.setUserId(userId);
        borrowInfo.setBorrowYearRate(borrowInfo.getBorrowYearRate().divide(new BigDecimal(100)));
        borrowInfo.setStatus(BorrowInfoStatusEnum.CHECK_RUN.getStatus());
        baseMapper.insert(borrowInfo);
    }

    @Override
    public List<BorrowInfo> selectList() {
       List<BorrowInfo> borrowInfoList = baseMapper.selectBorrowInfoList();
       borrowInfoList.forEach(borrowInfo -> {
           String returnMethod = dictService.getNameByParentDictCodeAndValue("returnMethod", borrowInfo.getReturnMethod());
           String moneyUse = dictService.getNameByParentDictCodeAndValue("moneyUse", borrowInfo.getMoneyUse());
           String status = BorrowInfoStatusEnum.getMsgByStatus(borrowInfo.getStatus());
           borrowInfo.getParam().put("returnMethod",returnMethod);
           borrowInfo.getParam().put("moneyUse",moneyUse);
           borrowInfo.getParam().put("status", status);
       });
        return borrowInfoList;
    }

    @Override
    public Map<String, Object> getBorrowInfoDetail(Long id) {
        BorrowInfo borrowInfo = baseMapper.selectById(id);
        String returnMethod = dictService.getNameByParentDictCodeAndValue("returnMethod", borrowInfo.getReturnMethod());
        String moneyUse = dictService.getNameByParentDictCodeAndValue("moneyUse", borrowInfo.getMoneyUse());
        String status = BorrowInfoStatusEnum.getMsgByStatus(borrowInfo.getStatus());
        borrowInfo.getParam().put("returnMethod",returnMethod);
        borrowInfo.getParam().put("moneyUse", moneyUse);
        borrowInfo.getParam().put("status", status);
        QueryWrapper<Borrower> borrowerQueryWrapper = new QueryWrapper<>();
        borrowerQueryWrapper.eq("user_id", borrowInfo.getUserId());
        Borrower borrower = borrowerMapper.selectOne(borrowerQueryWrapper);
        BorrowerDetailVO borrowerDetailVO = borrowerService.getBorrowerDetailVOById(borrower.getId());
        Map<String, Object> result = new HashMap<>();
        result.put("borrowInfo", borrowInfo);
        result.put("borrower", borrowerDetailVO);
        return result;
    }

    @Override
    public void approval(BorrowInfoApprovalVO borrowInfoApprovalVO) {
        Long id = borrowInfoApprovalVO.getId();
        BorrowInfo borrowInfo = baseMapper.selectById(id);
        borrowInfo.setStatus(borrowInfoApprovalVO.getStatus());
        baseMapper.updateById(borrowInfo);
        if (borrowInfoApprovalVO.getStatus().intValue() == BorrowInfoStatusEnum.CHECK_OK.getStatus().intValue()) {
            //创建标的
            //TODO
        }
    }
}
